My pinky toenails are both bumpy, thick, and irregular. This has been a problem my entire life. The nails sometimes look split, and sometimes it seems that a second nail is growing on top of the first. All of my nails are weak. My pinky toes turn out slightly, so I’m wondering if the ugly nails are because of the way my toes rub against the sides of my shoes? How can I improve my nails?